There are planets beyond our solar system? Few have dared to answer this question. At first, the hunt for other planets, was considered a marginal branch of science, weird, now, have been found hundreds of exotic ways, it is possible that a guest alien life forms? Those discovered so far are real monsters, we will be incinerated immediately, before you even look around. But other planets are more promising: "Glis 436 gives me the chills, I'm more into the skin." Are we about to discover a new land? Nonh yet know if our planet is something common, or an incredible exception. Advanced studies, strange worlds, atmospheres and hostile, we explore the universe in search of alien planets.